US4422486A - Trimming machine - Google Patents

Trimming machine Download PDF

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Publication number
US4422486A
US4422486A US06/227,120 US22712081A US4422486A US 4422486 A US4422486 A US 4422486A US 22712081 A US22712081 A US 22712081A US 4422486 A US4422486 A US 4422486A
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US
United States
Prior art keywords
shaft
machine
sun
frame
tool
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
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US06/227,120
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English (en)
Inventor
Jean C. Maret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PELUGEOT OUTILLAGE ELECTRIQUE
Original Assignee
Aciers et Outillage Peugeot SA
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Assigned to ACIERS ET OUTILLAGE PEUGEOT reassignment ACIERS ET OUTILLAGE PEUGEOT ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: MARET, JEAN C.
Assigned to PELUGEOT OUTILLAGE ELECTRIQUE reassignment PELUGEOT OUTILLAGE ELECTRIQUE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ACIERS ET OUTILLAGE PEUGEOT, A FRENCH BODY CORP.
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/12—Arrangements for feeding work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306216—Randomly manipulated, work supported, or work following device
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T409/00—Gear cutting, milling, or planing
    • Y10T409/30—Milling
    • Y10T409/306216—Randomly manipulated, work supported, or work following device
    • Y10T409/306496—Randomly manipulated, work supported, or work following device with work follower

Definitions

  • the present invention relates to machines for trimming or truing up pieces of wood, such as surfacing machines and planing machines, comprising a rotary tool having a tool holder provided with projecting axially extending blades and adapted to machine at least one surface of the piece of wood to be machined, there being provided two rollers for driving the pieces of wood and disposed respectively on the input side and output side of the tool, said rollers having axes which are parallel to the axis of the tool and being coupled to rotate with the tool through a planetary gear speed reducing mechanism.
  • a machine of this type is disclosed in the Swiss Pat. No. 103 483.
  • the speed reducing mechanism is mounted on the lower part of the machine and coupled through belt and chain transmissions respectively to the tool and to the driving rollers.
  • the reaction element of the planetary gear train is connected to the frame of the machine through a dog clutch coupling which serves to control the starting up of the machine.
  • An object of the invention is to simplify this known construction and to provide a strong and compact machine whose planetary gear speed reducing mechanism may be produced more cheaply.
  • the invention provides a trimming machine of the type defined hereinbefore wherein one of the sun wheels of the sun and planet train is directly mounted on the shaft of one of the driving rollers so as to be rigid with said one driving roller and the other sun wheel is a reaction sun wheel which is freely rotatably mounted on said one driving shaft and prevented from rotating relative to the frame of the machine while being radially slidable in said frame so as to allow the elastically yieldable application of the driving roller on the piece of wood to be machined.
  • the speed reducing mechanism is mounted directly on the shaft of one of the driving rollers, it avoids a chain transmission and at the same time permits as easy accommodation of the adaptations of the position of the roller driven by the mechanism to the different thicknesses of the pieces of wood to be machined.
  • FIG. 1 is a partial elevational view of a planing machine in which the features of the invention have been incorporated.
  • FIG. 2 is a plan view of the part of the planing machine shown in FIG. 1;
  • FIG. 3 is a view, partly in section and partly in elevation, of the speed reducing mechanism employed in the planing machine of FIGS. 1 and 2;
  • FIG. 4 is a sectional view taken on line 4--4 of FIG. 3;
  • FIG. 5 is a view of one of the halves of the drum forming a planet wheel carrier which is part of the speed reducing mechanism mechanism of the planing machine, and
  • FIG. 6 is an exploded perspective view of the speed reducing mechanism.
  • the invention is shown applied by way of example to a planing machine.
  • the features of the invention are applicable to any trimming or truing up machine other than a planing machine, such as a surfacing machine for example.
  • FIGS. 1 and 2 partly show a planing machine 1 which comprises a frame 2 in the sides 3 of which there is rotatably mounted a planing tool 4 in the known manner.
  • This tool is of the type comprising a tool holder provided with projecting axially extending blades (not shown).
  • a passageway 5 in which a piece of wood PB to be machined is movable.
  • the bottom of this passageway is formed by a support 6 which is adjustable in height.
  • FIG. 1 shows that the tool 4 projects into the passageway 5, the piece of wood being planed and brought to the required thickness by travelling through the passageway in the direction of arrow F (FIG. 1).
  • rollers 7 and 8 In order to drive along the piece PB, two driving rollers 7 and 8 are provided and placed on each side of the tool 4, their axes being parallel to the axis of the latter.
  • the rollers 7 and 8 project slightly into the passageway 5 and may thus come into contact with the upper surface of the piece PB on the upstream and downstream sides of the working region of the tool 4.
  • the roller 7 is placed at the entrance and the roller 8 is placed at the exit of the passageway 5.
  • the tool 4 is driven in rotation by an electric motor for example (not shown) which rotates at high speed the tool and the shaft 4a (FIG. 2) on which the tool is mounted.
  • the driving speed may be, for example, 6000 rpm.
  • the shaft 4a carries at the free end thereof a driving pulley 9 which is fixed to this shaft by a bolt 10. Extending around this pulley 9 is a driving belt 11 which is engaged with a speed reducing mechanism 12 which has for this purpose an annular groove 13 (see FIGS. 3 and 6).
  • the rollers 7 and 8, one of which is preferably ribbed, are mounted on shafts 7a and 8a which are carried in bearings 14 elastically yieldably mounted in the frame 2.
  • FIG. 3 diagrammatically shows such a bearing 14, and its elastically yieldable mounting is here symbolically represented by a spring 15 which is hooked to the upper part of the frame 2. Consequently, the rollers 7 and 8 are constantly pressed against the piece of wood PB to be machined as it progresses through the passageway 5 and are thus capable of adapting themselves to the thickness of this piece.
  • the shaft 7a Adjacent the speed reducing mechanism 12, the shaft 7a has a stepped extension 16 on the free end of which there is provided a pulley 17 which is held in position by a bolt 18 which is engaged in a tapped hole 19 in this extension 16.
  • the shaft 8a is extended laterally with respect to the frame 2 and carries, likewise at its free end, a pulley 20 of the same diameter as the pulley 17, a driving belt 21 extending around these pulleys.
  • the pulley 20 is held in position on the shaft 8a on which it is keyed by a bolt 22 which is engaged in a tapped hole (not shown) in the shaft 8a.
  • the extension 16 of the shaft 7a has two bearing surfaces 23 and 24, the latter receiving in particular the pulley 17.
  • the extension 16 has two annular radially extending shoulders 25 and 26.
  • Mounted on the bearing surface 23 and 24 are a reaction sun wheel 27, prevented from rotating relative to the frame 2, and a rotary sun wheel 28 which forms the output member of the sun and planet train constituting the speed reducing mechanism 12.
  • the sun wheel 27 has a cylindrical sleeve 29 and a gear 30, the sleeve 29 being journalled in a bushing 31.
  • the latter is mounted in a centre aperture 32 of a radial side wall 33 of the half 34a of a drum 35 which forms the planet wheel carrier of the speed reducing mechanism 12.
  • This drum thus comprises two halves 34a and 34b which are identical apart from the fact that the half 34b has the groove 13 in which the belt 11 is engaged for driving this planet wheel carrier.
  • the two halves of the latter are fitted one inside the other by means of lugs 36 which axially project from the confronting edges of the two halves of the drum 35.
  • the sun wheel 28 has a sleeve 37 and a gear 38, this sun wheel being provided with an axially extending keyway 39 which receives a key 40 for connecting the sun wheel 28 to the shaft 7a so that it rotates with the latter.
  • the sleeve 37 At the end of the sleeve 37 opposed to the gear 38, the sleeve has two flat faces 41 which cooperate with lugs which prevent the pulley 17 from rotating relative to the sun wheel 28.
  • the gears 30 and 38 have teeth of identical module but different numbers of teeth for example.
  • the gear 30 has 31 teeth whereas the gear 38 has only 30 teeth.
  • the sun wheels 27 and 28 are coaxial and are meshed with a single planet wheel 42, this arrangement is possible provided the respective gear teeth mesh together.
  • the teeth of the sun wheel 27 mesh with the teeth of the planet wheel 42 on a pitch diameter of wheel 27 which is larger than that of the teeth of the sun wheel 28.
  • the two gears 30 and 38 engage with a single planet wheel or gear 42 which is journalled in the halves 34 a and 34b of the drum 35 which acts as a planet wheel carrier.
  • these two halves have aligned apertures 43 in which the bearing surfaces 42a of the planet wheel 42 are mounted by means of needle bearings 44.
  • the sleeve 29 of the sun wheel 27 has at the end thereof opposed to the gear 30 two flat faces 45 for preventing rotation of this sun wheel relative to the frame 2. These flat faces 45 cooperate with rectilinear edges of a rectangular aperture 46 formed in a guide plate 47 which is mounted laterally on the frame 2 in front of an aperture 48 which is formed in the lateral wall of this frame and through which extends the shaft 7a of the driving roller 7.
  • the foregoing description shows that the speed reducing mechanism 12 is wholly outside the frame on the shaft 7a of the roller 7 and is moreover capble of undergoing vertical movements with this roller in accordance with the variation in the thickness of the piece of wood to be machine, because the sleeve 29 is mounted to be vertically slidable in the plate 47.
  • the speed reducing ratio of the sun and planet train is comparatively very high and, owing to the presence of this speed reducer, it is possible to achieve the required speed reduction between the tool 4 and the rollers 7 and 8 for a minimum overall size of this speed reducer which never projects above the upper table of the frame 2 of the machine.
  • the speed reduction ratio may be easily chosen by the difference in the numbers of teeth of the gears 30 and 38.
  • the sun and planet train also permits arranging that the input and output of the speed reducing mechanism are coaxial, which also reduces the overall size. Further, as the mechanism is housed within an entirely closed drum, which forms an integral part of the speed reducing mechanism, the gear train is shielded from dust and may be easily lubricated once and for all.
  • the speed reducing mechanism may be constructed from a moulded material, for example from light alloy such as Zamac, or possibly from a plastics material.
  • a moulded material for example from light alloy such as Zamac, or possibly from a plastics material.
  • the two halves of the drum 35 are moulded of identical shape.
  • the tool 4 has a cutting action on the adjacent surfaces of the pieces of wood passing thereover. These pieces of wood are driven through the machine over the support 6 by the rollers 7 and 8 which rotate at much lower speed owing to the inclusion, in the transmission 11, 12, 17, 21 between the pulley 9 rigid with the shaft 4a and the shafts 7 and 8, of the sun and planet train speed reducing mechanism 12.
  • the effect of the sun and planet train 12 is to rotate the sun wheel 28, and therefore the shaft 7a and the roller 7, and the pulley 17 keyed on this shaft 7a in the opposite direction to the drum 35 and shaft 4a, as shown by the arrows in FIG. 1.
  • the pulleys 17 and 20 are of equal diameter and the shaft 8a rotates at the same speed and in the same direction as the shaft 7a.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Paper (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Retarders (AREA)
US06/227,120 1980-01-22 1981-01-21 Trimming machine Expired - Fee Related US4422486A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8001285A FR2473941A1 (fr) 1980-01-22 1980-01-22 Machine de corroyage perfectionnee
FR8001285 1980-01-22

Publications (1)

Publication Number Publication Date
US4422486A true US4422486A (en) 1983-12-27

Family

ID=9237732

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/227,120 Expired - Fee Related US4422486A (en) 1980-01-22 1981-01-21 Trimming machine

Country Status (7)

Country Link
US (1) US4422486A (de)
EP (1) EP0032861B1 (de)
JP (1) JPS56117601A (de)
AT (1) ATE7118T1 (de)
CA (1) CA1146452A (de)
DE (1) DE3163127D1 (de)
FR (1) FR2473941A1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
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US4977594A (en) * 1986-10-14 1990-12-11 Electronic Publishing Resources, Inc. Database usage metering and protection system and method
WO1996005452A1 (en) * 1994-08-15 1996-02-22 Humming Bird Incorporated Improved transmission
US5887243A (en) 1981-11-03 1999-03-23 Personalized Media Communications, L.L.C. Signal processing apparatus and methods
US5904192A (en) * 1998-08-25 1999-05-18 Chen; Chin-Te Wood planing machine
US6029722A (en) * 1997-12-18 2000-02-29 Michael Weinig Ag Shaping machine
US6099432A (en) * 1997-09-09 2000-08-08 Harmonic Drive Systems Inc. Planetary gear device having a backlash adjusting mechanism
EP1234645A2 (de) * 2001-02-26 2002-08-28 Techtronic Industries Co., Ltd. Abrichthobelmaschine mit Mehrganggetriebe und Verfahren zur Herstellung derselben
US6557599B2 (en) * 2001-07-18 2003-05-06 Juei-Seng Liao Wood planing machine with shiftable reduction drives of a feed-in rolling mechanism
US6666241B1 (en) * 2002-12-04 2003-12-23 P & F Brother Industrial Corporation Wood planing device for a wood planing machine
US7769344B1 (en) 1981-11-03 2010-08-03 Personalized Media Communications, Llc Signal processing apparatus and methods
USRE47642E1 (en) 1981-11-03 2019-10-08 Personalized Media Communications LLC Signal processing apparatus and methods

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8329083D0 (en) * 1983-11-01 1983-12-07 Davall Gear Co Ltd Epicyclic gear assembly
US5756566A (en) * 1989-04-20 1998-05-26 A-Line Products Corp. Aqueous coating composition
DE10314234B3 (de) * 2003-03-29 2004-10-28 Aurator Treuhandgesellschaft Mbh Vier-Wellen-Leistungsverzweigungsgetriebe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2153856A (en) * 1936-10-26 1939-04-11 Edward E Stout Gear set
US2722851A (en) * 1952-10-06 1955-11-08 Albert F Woodell Speed reducers
US3143899A (en) * 1962-01-16 1964-08-11 South African Council For Seci Speed reducer unit or drive
SU642162A1 (ru) * 1977-04-14 1979-01-15 Уральский лесотехнический институт Автоподатчик
DK55680A (da) * 1979-02-09 1980-08-10 Procter & Gamble Antimikrobiel sammensaetning og oralt middel indeholdende samme samt fremgangsmaade til bekaempelse af mikroorganismer

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FR520503A (fr) * 1919-05-24 1921-06-27 Olma Ateliers De Construction Dispositif de commande pour raboteuses à bois avec au moins un arbre porte-outils et mécanisme d'avance
CH101765A (de) * 1922-08-11 1923-10-16 Olma Landquarter Maschinenfabr Antriebseinrichtung an Holzhobelmaschinen mit einer oder mehreren Messerwellen und Vorschubmechanismus.
DE345702C (de) * 1922-11-17
CH103483A (de) * 1923-02-16 1924-02-16 Olma Landquarter Maschinenfabr Antriebsvorrichtung, insbesondere für Holzhobelmaschinen.
CH136989A (de) * 1928-11-15 1929-12-15 Leya A G Maschbau Reduktionsgetriebe an Hobelmaschinen für Holzbearbeitung.
DE536382C (de) * 1931-03-14 1931-10-22 Holzbearbeitungs Maschinenfabr Holzfraesmaschine
GB916849A (en) * 1960-08-10 1963-01-30 Alexander Roy Bradshaw Improved cutting machine
CH552444A (de) * 1972-06-13 1974-08-15 Heckel Eric Mechanische vorschubantriebsvorrichtung fuer werkzeugmaschinen.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2153856A (en) * 1936-10-26 1939-04-11 Edward E Stout Gear set
US2722851A (en) * 1952-10-06 1955-11-08 Albert F Woodell Speed reducers
US3143899A (en) * 1962-01-16 1964-08-11 South African Council For Seci Speed reducer unit or drive
SU642162A1 (ru) * 1977-04-14 1979-01-15 Уральский лесотехнический институт Автоподатчик
DK55680A (da) * 1979-02-09 1980-08-10 Procter & Gamble Antimikrobiel sammensaetning og oralt middel indeholdende samme samt fremgangsmaade til bekaempelse af mikroorganismer

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Also Published As

Publication number Publication date
DE3163127D1 (en) 1984-05-24
CA1146452A (en) 1983-05-17
FR2473941A1 (fr) 1981-07-24
EP0032861A3 (en) 1981-08-05
FR2473941B1 (de) 1983-09-16
EP0032861B1 (de) 1984-04-18
ATE7118T1 (de) 1984-05-15
EP0032861A2 (de) 1981-07-29
JPS56117601A (en) 1981-09-16

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